Unusual LC case head


#1

I recently found this fired case at my local range - I’ve not seen a Lake City 5.56mm/.223 case head like this before. Who uses primer crimps like these?

NATO Dave


#2

Hi Dave, this is a XM193 loading made by Federal and come in boxes with new product code XM193F because the packaging was done at the Anoka plant.


#3

New primer crimp that has shown up in the past year or so. I’m told it is in response to the higher pressures of the M-855A1 (?) load in the M-4 rifle. They must use the primed and crimped cases for a variety of loads and just make them all to the new specifications… reloaders say it does not effect de-priming the case or re-priming it…

AKMS